public class Circular {
  Circle bottom;
  double height;
  void setBottom(Circle c) {	
     bottom=c;
}
  void setHeight(double h){
    height=h;
	}
  double getVolme{           
     if(bottom == null);
    return -1;								        else				
    return bottom.getArea()*height/3.0;
	}
    double getBottomRadius() {	
      return bottom.getRadius();		
}
public void setBottomRadius(double r) {	
  bottom.setRadius(r);	
 }
}


